Preheat oven to 350°F. Line the bottom of your loaf pan (8-1/2 x 4-½ inches) with parchment paper and lightly butter the sides.
Sift together dry ingredients.
Juice two lemons and add milk. Stir and set aside.
In a large bowl, add butter, sugar, and lemon zest. Cream together with a stand or hand mixer with a paddle attachment for about 3-4 mins.
Add eggs one at a time, waiting until each egg is fully combined before adding the next one. Mix on high speed for 1-2 mins after eggs are added.
Add half of wet and dry ingredients and mix on a low speed until almost combined. Next, add the rest of the dry and wet ingredients and blueberries, and mix together with a spatula until just combined.
Add the batter to the prepared loaf pan. Use a spatula to help smooth out the batter.
Place in oven and bake for 60 mins. If you notice the loaf beginning to brown prematurely, cover it with aluminum foil. To test loaf doneness simply use a skewer to insert into the center. When you remove the skewer if it is batter and crumb free, it is done. It should take 60-65 mins to finish baking.