*For the buttermilk - You can also use full fat kefir or plain yogurt. To make buttermilk, stir 1 cup of milk with 1 tbsp of lemon juice or vinegar. Allow to sit on your counter for at least 10 minutes before using.
*Fresh blueberries - I always recommend using fresh. If using frozen, do NOT thaw them. When ready to add them to your bowl, remove from freezer, quickly dust them in 1 tsp of flour, and then add into the bowl. The flour will help absorb any liquid and prevent sinking.