Preheat oven to 350℉.
In a large mixing bowl, use an electric mixer to cream unsalted butter (½ cup, i.e. 1 stick) and granulated sugar (1 cup) for 2 minutes until light and fluffy.
Add sour cream (½ cup), eggs (2 large), vanilla extract (2 teaspoons), and almond extract (¼ teaspoon) and mix until just combined.
Add baking powder (1 ½ teaspoons), baking soda (¼ teaspoon), and salt (½ teaspoon) and mix until combined.
Slowly add all-purpose flour (1 ¾ cups) and mix until just combined. The mixture will be thick.
Add frozen wild blueberries (1 cup) and mix for 5-10 seconds until just combined. I like to mix them just to the point where I can see a little streaks of blue throughout the batter.
Line a light-colored metal cupcake pan with paper cupcake liners.
Use a 4-tablespoon cookie scoop to scoop batter into each one. Even though the dough is thick and will stay in “mounds” when scooped, you do not need to spread it to be flat as it will melt down in the oven.
Top with turbinado sugar, if desired.
Bake at 350ºF for 22-24 minutes, or until tops are very lightly brown. Place on a wire rack to cool.
Allow to cool before removing from the wrapper (if you try to unwrap them while they’re hot, they will likely stick).
Store in an airtight container for 3-4 days or freeze up to 1-2 months. To help prevent the tops from getting sticky during storing, place a piece of bread or a few saltine crackers in the container to help absorb moisture.