Lime Blackberry Coffee Cake

Preheat oven to 350ºF. Generously spray (or line with parchment paper, then spray) an 8×8 baking pan with nonstick spray.

For the streusel, combine butter and sugar in a small bowl. Add lime zest and juice. Mix in flour with a fork until well-combined. Set aside in refrigerator.

For the cake, mix flour, sugar, baking powder and baking soda in a medium bowl. Set aside.

In a small bowl, combine eggs, yogurt, lime zest and juice with a whisk. Add to the flour mixture and mix well, but don’t beat.

Pour batter into prepared pan. Sprinkle blackberries over batter. Remove streusel from refrigerator and crumble it up evenly over the blackberries.

Bake 30–35 minutes. Cake will look brown at edges and pick inserted in center will come out clean.
Let cool at least an hour before glazing.

For the glaze, mix powdered sugar with vanilla and enough milk, half-and-half, or cream to make a glaze. Spoon over cooled cake.