Sift flour into a mixing bowl

Add in Baking Powder, Salt & Sugar

Whisk Dry ingredients together

Create a well in the middle of the bowl & gradually add buttermilk

Stir until combined WITHOUT over mixing

Add in blueberries gently folding into dough

Pour melted room temp butter into baking pan

Add dough directly on top of melted butter & gently spread out

Use a knife to cut the dough into 9 pieces

Bake at 450 for 25-30 minutes

For Glaze : combine powdered sugar, milk & vanilla extract

Remove from oven & let cool for 5 minutes then drizzle glaze