Sourdough Apple Coffee Cake with Streusel & Maple Icing

Ingredients

• 1/2 cup sourdough starter discard (unfed)
• 1/4 cup unsweetened applesauce
• 1/4 cup maple syrup (or honey)
• 1/4 cup melted butter or coconut oil
• 1 large egg
• 1/2 teaspoon vanilla extract
• 3/4 cup all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1 teaspoon ground cinnamon
• 1/4 teaspoon ground nutmeg
• 1/4 teaspoon salt
• 1 small apple, peeled, cored, and diced
• For the Crumb Topping:
• 1/4 cup almond flour
• 1/4 cup rolled oats
• 2 tablespoons coconut sugar or maple sugar
• 2 tablespoons cold butter or coconut oil, cut into small cubes
• 1/2 teaspoon ground cinnamon
• 2 tablespoons slivered almonds
• For the Icing Drizzle:
• 2 tablespoons cream cheese, softened
• 1–2 tablespoons maple syrup or honey (to taste)
• 1–2 teaspoons milk of choice (to thin as needed)

Instructions

1. 1
   Preheat & Prep: Preheat oven to 350°F (175°C). Grease a 6-inch round cake pan and line the bottom with parchment.
2. 2
   Mix Wet Ingredients: In a medium bowl, whisk sourdough discard, applesauce, maple syrup, butter, egg, and vanilla until smooth.
3. 3
   Mix Dry Ingredients: In another bowl, whisk flour, baking powder, baking soda, cinnamon, nutmeg, and salt.
4. 4
   Combine: Stir dry mixture into wet until just combined. Fold in diced apple.
5. 5
   Make the Crumb Topping: Combine almond flour, oats, sugar, and cinnamon. Cut in butter (or coconut oil) with fingers, fork, or pastry cutter until coarse crumbs form.
6. 6
   Assemble & Bake: Pour batter into prepared pan. Sprinkle evenly with crumb topping. Bake 30–35 minutes, or until a toothpick inserted in center comes out clean.
7. 7
   Make the Icing: Whisk cream cheese and maple syrup until smooth. Add milk gradually to thin to a drizzling consistency.
8. 8
   Finish & Serve: Cool cake in the pan for 10 minutes, then transfer to a rack. Drizzle with icing before serving.