Tender coffee cake with a cinnamon-sugar swirl and a buttery crumb streusel on top.
8 steps, about 75 minutes start to finish.
Preheat oven to 350F.
Mix yogurt, sugar, oil, and eggs together.
Add flour, baking powder, and salt. Mix until combined.
Pour half the batter into a greased baking pan.
Sprinkle cinnamon and brown sugar mixture over the first layer of batter.
Add remaining batter on top.
Make streusel topping by combining butter, flour, brown sugar, and cinnamon. Crumble over top.
Bake at 350F for approximately 55 minutes until a toothpick comes out clean.
“Spread half the batter, add the cinnamon-sugar layer, then top with the rest so the swirl lands in the middle. Test with a toothpick before pulling it, since gluten-free batters can look done on top while still wet inside.”