Preheat oven to 350F and coat a 9-inch round cake pan or springform pan with cooking oil spray.
In a large bowl, whisk together dairy free milk, olive oil, vanilla, sugar, lemon zest, and lemon juice.
In a small bowl, whisk together flour, baking powder, baking soda, and salt.
Pour the flour mixture into the large bowl with wet ingredients and stir until combined. Fold in about half of the blueberries, then transfer batter to the prepared pan.
Gently press the remaining blueberries into the top of the cake and bake for 40-45 minutes, or until cooked through.
Once cooked, remove from the oven. Let cool completely before removing from pan, at least 30 minutes. After the cake has cooled, top with a dusting of powdered sugar.
Notes
Store leftovers in an airtight container for up to 4 days at room temperature or for up to 3 months in the freezer.