Glazed Old Fashioned Buttermilk Doughnut Bundt Cake




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Glazed Old Fashioned Buttermilk Doughnut Bundt Cake ~ this cake knocked our socks off, you have to try it.  It tastes just like those glazed old fashioned doughnuts, you know the ones…only this one is mega-sized, in a bundt pan!  File it under foodie fantasy come true.

A glazed old fashioned buttermilk doughnut bundt cake on a cooling rack

I’m starting Fall ’18 with a bang, folks.  I wanted to get this epic doughnut cake out early so you’d have plenty of chances to make it this season.  It’s a fun cake to bring to any gathering, but it’s also pretty nice to have sitting on the counter for the family.   This bundt cake recipe marks #2 in a new mini-series I’ve got going ~ doughnut inspired bundt cakes ~ what do you think,  isn’t that going to be fun?  My Apple Cider Doughnut Cake started it all off and I’ve got plans for a few more besides today’s recipe.  Can’t wait!

Glazed Buttermilk Doughnut Bundt Cake on a cooling rack

So, glazed old fashioned buttermilk doughnuts are the best doughnuts, can we agree on that?  The crackly outer glaze and the soft cakey interior make them utterly irresistible.  It’s all in the way the craggy crust soaks in the glaze that really gets me.  

Glazed Old Fashioned Doughnut Bundt Cake sliced, on a cooling rack

What makes a doughnut taste like a doughnut?

Have you ever wondered?  It’s nutmeg!  Nutmeg happens to be one of my favorite spices, I always buy it in whole form and grate it fresh for my recipes, the aroma is incredible.  It’s nutmeg that gives doughnuts their distinctively ‘doughnutty’ flavor.  I add a whole teaspoon of this wonderful spice to this recipe, which really gives the cake a doughnut vibe.  If you look close you’ll be able to see the fine specks of spice in the cake.

A slice of Glazed Old Fashioned Doughnut Bundt Cake with a fork

I used a full teaspoon of freshly grated nutmeg in this cake, and for those who know nutmeg, this is a lot.  But it really gives the cake that perfect doughnut flavor.

How to use fresh nutmeg

Fresh nutmeg comes in the form of small, hard egg-shpaed balls, about the size of a large olive.  They come in jars and a jar will last you quite a while and is well worth it.

Freshly ground nutmeg for a glazed old fashioned buttermilk doughnut bundt cake

Normally you would grind fresh nutmeg on a rasp or the fine side of your box grater, and a little goes a long way with this aromatic spice.  Most recipes call for 1/4 teaspoon or so.  But for this epic doughnut cake I used a whole nutmeg!

The quickest way to do this in a coffee grinder/spice grinder.  My sturdy little coffee grinder has been serving me well for decades, it’s a must to have around if you love cooking with spices.  (Here is the newer model of my grinder if you’re interested.) I grind whole cinnamon, allspice, and lots of other things in it (including coffee,) it never gives up.  Yes, you can use ground nutmeg too, but use less.  Dried spices are more concentrated.

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Grinding whole nutmeg in a spice grinder

This classic bundt cake bakes up with a big crevasse running along the center.  It provides the perfect jagged surface for all that glaze to settle into.  Yum.

Glazed Buttermilk Doughnut Bundt Cake just out of the oven

It was meant to be…

Brushing the glaze onto a glazed old fashioned buttermilk doughnut bundt cake

Why do I use oat flour in this cake?

I’ve discovered that a combination of regular all purpose flour and oat flour results in a perfect cake crumb, along with an extra nutrition boost from the whole grain oats, and a lovely flavor.  You can buy oat flour in most supermarkets, and you can always find it online.

How to make your own oat flour ~

If you’re interested, it’s super easy to make it yourself.  See my post about How to Make Oat Flour for all the details!

Glazed Old Fashioned Buttermilk Doughnut Bundt Cake
Rate this recipe
9 ratings

Prep Time: 15 minutes

Cook Time: 45 minutes

Total Time: 1 hour

Category: breakfast, brunch, dessert

Cuisine: American

Yield: serves 16

Calories per serving: 305

Glazed Old Fashioned Buttermilk Doughnut Bundt Cake

Glazed Old Fashioned Buttermilk Doughnut Bundt Cake ~ this cake knocked our socks off, you have to try it!  It tastes just like those glazed old fashioned doughnuts, you know the ones...only this one is mega-sized, in a bundt pan!  

Ingredients

    dry ingredients
  • 2 cups all purpose flour
  • 1 and 1/2 cups oat flour (If you are grinding your own flour start with 2 cups raw rolled oats, process and then measure out 1 and 1/2 cups of the flour)
  • 1 and 1/2 cups sugar
  • 1 tsp freshly grated nutmeg
  • 1 and 1/2 tsp baking powder
  • 1/2 tsp baking soda
  • 1/2 tsp salt
  • wet ingredients
  • 1 3/4 cups buttermilk
  • 3/4 cup vegetable oil (I use safflower or canola)
  • 3 large eggs, room temperature
  • 2 tsp vanilla extract
    glaze
  • 2 cups powdered sugar
  • about 5 Tbsp water

Instructions

  1. Preheat oven to 350F
  2. Prepare a bundt pan by carefully buttering the entire surface, and then dusting with flour. Shake off excess flour.
  3. Whisk the dry ingredients together in a large mixing bowl.
  4. Whisk the wet ingredients together in a another bowl.
  5. Add the wet ingredients to the dry and whisk until just combined, don't over mix.
  6. Pour the batter into the prepared pan and bake for 45-50 minutes, until a toothpick inserted near the center comes out without wet batter clinging to it. Set the pan on a cooling rack for 15 minutes.
  7. Invert the cake and once it is safely out of the pan, gently flip it back over so that the rough edge is facing up. Let cool completely.
  8. To make the glaze, whisk the sugar with just enough water to make a smooth pourable glaze. When you lift the spoon and let the glaze drip down the 'squiggles' should disappear instantly. I used almost but not quite all of the water. If you like you can flavor your glaze with vanilla extract, but add that before adding the water.
  9. When the cake is cool, brush the glaze liberally all over, concentrating on those gorgeous cracks along the top. Work quickly, and go over the cake more than once if you need to. The glaze will harden as it sits.

Notes

The pan I used for this recipe is the classic Wilton 10 inch fluted bundt pan In a pinch, you can substitute regular flour for the oat flour.

Other amazing bundt cake recipes to try ~

This Glazed Old Fashioned Buttermilk Doughnut Bundt Cake tastes just like old fashioned doughnuts, only mega-sized in a bundt pan! #recipe #easy #bundt #cake #doughnut #coffeecake #buttermilk #brunch #glazed #dessert #homemade

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47 Comments

  • Reply
    May
    December 9, 2018 at 7:29 am

    What measurement would I use for nutmeg if using regular ground jar nutmeg. Not fresh

    • Reply
      Sue
      December 9, 2018 at 8:22 am

      It kind of depends on how much you like nutmeg, May, but I would add a teaspoon.

  • Reply
    Kathie
    November 30, 2018 at 7:07 pm

    Can you freeze the cake and hold off on glazing ? And how best to wrap? This cake may be our Christmas cake but need to make in advance this year.

    • Reply
      Sue
      November 30, 2018 at 9:34 pm

      It’s not ideal to glaze it later because the glaze won’t get a chance to sink into the cake. But you’re in a bind because freezing glazed cakes doesn’t work very well. Not sure what to advise, sorry Kathie!

  • Reply
    Sarah
    November 1, 2018 at 10:54 am

    Can I substitute all-purpose flour for oat flour?

    • Reply
      Sue
      November 1, 2018 at 1:10 pm

      Yes, that’s fine.

  • Reply
    Jennifer
    October 8, 2018 at 5:38 pm

    Hi there. Wondering if you’ve ever made these in a mini bundt tin? And if so, wonder how long to bake them? This looks so delicious! Can’t wait to try it!!!

    • Reply
      Sue
      October 8, 2018 at 6:00 pm

      Funny you should mention that, I was wandering through Marshall’s the other day and found some cute mini bundt pans and considered doing mini doughnut bundt cakes. I’m not sure exactly how long to bake them but I’d probably take a peek at 20 minutes.

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