High Altitude Ginger Plum Crumb Cake
Moist sour cream coffee cake that's full of juicy plums, and sprinkled with buttery crumble topping.
All recipes on Curly Girl Kitchen are developed for high altitude at 5,280 feet. See FAQs for adjusting to higher or lower elevations.
Equipment
Ingredients
Crumb Topping
- 1 ½ cups all-purpose flour, fluffed, spooned and leveled
- ⅓ cup granulated sugar
- ⅓ cup light brown sugar, lightly packed
- ¼ tsp ground ginger
- ¼ tsp coarse Kosher salt (if using table salt, use half the amount)
- ½ cup unsalted butter, melted
Cake
- 2 cups cake flour, fluffed, spooned and leveled
- ¾ cup granulated sugar
- 1 ½ tsp baking powder
- ½ tsp coarse Kosher salt (if using table salt, use half the amount)
- ¾ tsp ground ginger
- 2 large eggs
- ¾ cup full fat sour cream
- ¼ cup unsalted butter, melted
- ¼ cup vegetable oil
- 2 tsp vanilla extract
- ¾ lb plums (about 4 plums), pitted and chopped into 1/4 inch pieces
Instructions
Crumb Topping
- Preheat the oven to 350 F, and position a rack in the center of the oven. Lightly brush a 9x9 inch square baking pan with a little softened butter, or spray with non-stick baking spray.
- In a bowl, combine the flour, sugar, brown sugar, ginger and salt. Add the melted butter and stir until moist and crumbly.
- Set the topping aside until needed.
Cake
- In a bowl, whisk together the flour, sugar, baking powder, salt and ginger.
- Separately, whisk together the eggs, sour cream, melted butter, oil and vanilla. Add the wet ingredients to the dry, and use a spatula to stir the batter together until there are just a few floury streaks remaining. The batter will be thick.
- Add half the chopped plums, and fold them in with the spatula. Spread the batter evenly into the prepared pan.
- Scatter the remaining chopped plums over the batter, then sprinkle with the crumb topping.
- Bake the cake for about 45-50 minutes, until a cake tester or sharp knife inserted in the center comes out clean.
- Set the pan on a cooling rack and cool the cake for about 30-45 minutes, then cut into pieces and serve warm, or at room temperature.
Notes
Store leftover cake in an airtight container at room temperature for up to 2 days.
https://curlygirlkitchen.com/