Blueberry Buttermilk Cake

• 1 cup (130 grams) all-purpose flour
• 1/2 teaspoon (2 grams) baking powder
• 1/2 teaspoon (2 grams) baking soda
• 1/4 teaspoon salt
• 1/2 stick (56 grams) unsalted butter, softened
• 2/3 cup (146 grams) plus 1 1/2 tablespoons (22 grams) sugar, divided
• 1/2 teaspoon pure vanilla extract
• 1/2 teaspoon finely grated lemon zest (optional)
• 1 large (57 grams) egg
• 1/2 cup (118 ml) well-shaken buttermilk
• 1 cup (5 ounces or 140 grams) fresh raspberries 

Preheat oven to 400°F with rack in middle. Butter and flour a 9-inch round cake pan.

Whisk together flour, baking powder, baking soda, and salt and set aside. In a larger bowl, beat butter and 2/3 cup (146 grams) sugar with an electric mixer at medium-high speed until pale and fluffy, then beat in vanilla and zest, if using. Add egg and beat well.

At low speed, mix in flour mixture in three batches, alternating with buttermilk, beginning and ending with flour, and mixing until just combined.Spoon batter into cake pan, smoothing top. Scatter (see Note) raspberries evenly over top and sprinkle with remaining 1 1/2 tablespoons (22 grams) sugar.
Bake until cake is golden and a wooden pick inserted into center comes out clean, 20 to 25 minutes. Cool in pan 10 minutes, then turn out onto a rack and cool to warm, 10 to 15 minutes more. Invert onto a plate.

Serves 8.

VERDICT:  I made this to use up some buttermilk and some sad blueberries from Cooper's.  It was very good warm, with a crunchy sugar top, but not so good the next day.  Toss, or make when people are coming over.  (It is nice in that it doesn't require any difficult ingredients--the original recipe called for raspberries, but notes that the fruit is flexible.)