Preheat your oven to 325°F.
Coat the inside of a loaf pan with shortening or butter and lightly dust with flour. You can also line it with parchment paper. Sift together the flour, baking powder and salt. Ensure that it’s mixed together well.
1 1/2 cups all purpose flour, 1 teaspoon baking powder, 1/4 teaspoon salt
Cream the butter in an electric mixer fitted with a paddle until light, about 3-4 minutes. Gradually add the sugar and beat until fluffy.
1 cup unsalted butter, 1 cup granulated sugar
Add the eggs one at a time, then the lemon juice, lemon zest, and vanilla extract scraping down the sides of the bowl as needed until evenly blended.
4 eggs, 2 tablespoons lemon juice, 1 teaspoon lemon zest, 1 teaspoon vanilla extract
Gradually add all but 1 tablespoon of the flour mixture until just combined. Do not over mix.
Gently toss the blueberries in the remaining flour then carefully fold in the blueberries and any loose flour with a spoon or silicone spatula.
1 cup blueberries
Pour the batter into the prepared pan.
Bake for 70-90 minutes, or until a toothpick inserted into the center comes out clean.
Allow the pound cake to cool for at least 20 minutes before removing it from the pan.
Once removed allow to fully cool then slice and serve.