Stir together the milk and lemon juice. Set aside to curdle (this is mimicking buttermilk).
Thoroughly grease top of muffin pan and cavities, or use muffin liners.
In a large bowl, whisk together the flour, almond flour, baking powder, baking soda, salt, and lemon zest. Make a well in the center.
In a large bowl, whisk together the sugar, milk, melted butter, oil, yogurt, eggs, and vanilla until completely combined. Pour into the well of the dry ingredients and gently mix until almost all combined. Fold in the blueberries until just incorporated, as to not overwork the batter.
Fill every other muffin cup (If you have a 12 cup muffin tin you will fill 6 of them. This helps the muffins to rise tall.) to the lip, full with batter. The batter should mound slightly. Sprinkle 1 teaspoon sugar over each muffin (don't skip this!). Preheat oven to 375 degrees F (we wait to preheat so that batter can rest).
When oven is ready, bake until the muffins are light golden brown and toothpick comes out with a few crumbs, rotating the pan halfway through baking, 17 to 20 minutes. Let the muffins cool in the tin for 5 minutes, then gently remove them to a wire rack. Repeat with remaining batter.