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Creamy pecan coffee cake dessert on white plate, perfect for breakfast or brunch.

Old Fashioned Oatmeal Cake

Chef Jenn
Lazy Daisy Cake is a soft oat-based cake topped with a caramelized coconut-pecan glaze. A vintage dessert with timeless flavor and irresistible texture.
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Prep Time 20 minutes
Cook Time 40 minutes
Total Time 1 hour
Course Dessert
Cuisine American
Servings 15 slices
Calories 389 kcal

Ingredients
  

Cake:

  • nonstick cooking spray
  • 1 1/4 cups boiling water
  • 1 cup rolled oats uncooked old-fashioned regular
  • 1 1/2 cups all-purpose flour
  • 1 tsp. baking soda
  • 1 tsp. ground cinnamon
  • 1/2 tsp. ground nutmeg
  • 1/2 tsp. kosher salt
  • 1/2 cup salted butter softened
  • 1 cup granulated sugar
  • 3/4 cup light brown sugar
  • 2 tsp. vanilla extract
  • 2 large eggs at room temperature

Topping:

  • 6 Tbsp salted butter
  • 1/2 cup light brown sugar
  • cup sweetened condensed milk
  • 1 1/2 cups sweetened flaked coconut
  • 3/4 cup pecans toasted chopped

Instructions
 

For the Cake

  • Preheat your oven to 350°F and spray a 13x9-inch broiler-safe pan with nonstick spray.
  • Stir boiling water and oats in a heatproof bowl; let sit 30 minutes to soften.
  • Whisk the dry ingredients such as flour, baking soda, cinnamon, nutmeg, and salt in a medium bowl.
  • In a stand mixer with paddle, beat together the butter, sugars, and vanilla until fluffy, 3–4 minutes. Add eggs one at a time.
  • Add the flour mixture in two batches, then stir in oat mixture. Scrape bowl as needed. Pour into pan.
  • Bake 30–35 minutes, until a tester comes out clean. Cool 10 minutes.

For the Topping

  • In a heavy saucepan, melt butter, brown sugar, and condensed milk over medium heat, stirring until smooth and simmering.
  • Remove from heat and stir in coconut and pecans. Spread over cake.
  • Broil 2–3 minutes on center rack until topping is bubbly and golden. Cool completely before slicing.

Notes

Chef Jenn’s Tips

  • Allow the oats to cool before mixing them into the batter; hot oats can weigh the cake down.
  • Toast pecans in a dry skillet before using—they add deeper, nutty flavor.
  • Watch the broiler carefully. The topping caramelizes fast and can burn in seconds.

Nutrition

Serving: 1sliceCalories: 389kcalCarbohydrates: 54gProtein: 4gFat: 18gSaturated Fat: 10gPolyunsaturated Fat: 2gMonounsaturated Fat: 5gTrans Fat: 0.4gCholesterol: 55mgSodium: 288mgPotassium: 149mgFiber: 2gSugar: 38gVitamin A: 387IUVitamin C: 0.2mgCalcium: 55mgIron: 1mg
Keyword coconut pecan topping, Lazy Daisy Cake, oatmeal sheet cake, retro cake, vintage dessert recipe
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