Preheat oven to 350°F.
Gently toss blackberries in a bowl with 1 tablespoon of flour (this will keep them from sinking to the bottom of the batter while baking).
2 cups blackberries, sliced, Extra 1 tablespoon all purpose flour, for coating blackberries
Using a stand mixer or a handheld electric mixer, cream butter and sugar.
½ cup salted butter, softened to room temperature, ¾ cup granulated sugar
Next, add eggs one at a time, mixing well after each.
2 large eggs
Once the eggs are well blended into the batter, add yogurt, milk, and lemon juice, and mix again.
5.3 ounces plain Greek yogurt, ¼ cup milk, 2 tablespoons lemon juice
In a separate bowl, stir together the flour, salt, and baking powder.
1 ½ cups all purpose flour, ¼ teaspoon salt, 1 teaspoon baking powder
Add dry to wet ingredients and mix until thick and smooth.
Finally, using a spoon or rubber spatula, fold in lemon zest and blackberries.
1 tablespoon lemon zest (about 1 lemon), 2 cups blackberries, sliced
Grease a loaf pan with vegetable shortening and pour batter into the pan, leveling the top with a rubber spatula.
Vegetable shortening for greasing loaf pan
Bake for 50 to 60 minutes or until a toothpick inserted in the center comes out clean.
Let cool completely on a wire rack before adding lemon glaze. If you add the lemon glaze while the lemon blackberry bread is still hot, it will soak in instead of staying on top.
In a small bowl, simply whisk together powdered sugar, lemon juice, and lemon zest.
¾ cup powdered sugar, 2 tablespoons lemon juice, 1 teaspoon lemon zest
Pour over completely cooled lemon blackberry bread and garnish with extra blackberries and lemon zest.
Enjoy with or without lemon glaze, with a tall glass of lemonade or a cup of tea or coffee, or with a scoop of ice cream for dessert!