Apple Cinnamon Sour Cream Coffee Cake (Print version)

Sour cream keeps this apple cake tender beneath a buttery cinnamon crumb topping.

# Ingredients:

Ingredients

01 - 220 g all-purpose flour, divided
02 - 140 g brown sugar, divided
03 - 110 g butter, divided
04 - 1½ tsp ground cinnamon, divided
05 - 1½ tsp baking powder
06 - ¼ tsp baking soda
07 - ¼ tsp salt
08 - 2 large eggs
09 - 150 g sour cream
10 - 1 tsp vanilla extract
11 - 200 g peeled diced apple

# Instructions:

01 - Heat oven to 175°C / 350°F. Grease and line a 20 cm square pan. Dice the peeled apple into pieces about 7 mm across. Keep 80 g butter softened and melt the remaining 30 g.
02 - For the crumb topping, mix 40 g flour, 40 g brown sugar and ½ teaspoon cinnamon. Stir in the 30 g melted butter with a fork to make coarse crumbs. Set aside.
03 - Whisk the remaining 180 g flour with baking powder, baking soda, salt and remaining 1 teaspoon cinnamon. In another bowl, beat the 80 g softened butter with remaining 100 g brown sugar until creamy.
04 - Beat eggs into the butter mixture one at a time, then add vanilla. Fold in half the dry mixture, the sour cream, then the rest of the dry mixture. Gently fold in all the diced apple.
05 - Spread batter in the pan and scatter the reserved crumbs evenly on top. Bake 38–45 minutes until the center springs back lightly and a skewer comes out without wet batter. Cover loosely with foil if the crumbs brown too quickly.
06 - Cool in the pan on a rack for 45 minutes before lifting out and cutting into nine squares. Serve without icing; coffee cake means a cake served with coffee, and this recipe contains no coffee.
07 - Keep covered in the refrigerator for up to four days. Bring portions briefly toward room temperature or warm gently before serving. Freeze individual squares for up to two months.

# Good to know:

01 - Includes 45 minutes resting or cooling time.