Preheat oven to 375 (350 degrees for glass pan.)
Mix dry ingredients together, then slowly add beer & stir to combine. Add the desired stir-in options for Pesto Bread & blend thoroughly.
Transfer batter into well-oiled 9x5 glass loaf pan and bake on middle rack for 45 minutes.
Remove pan from oven and pour 4 tablespoons of reserved pesto oil (or olive oil) onto the surface of the loaf & return it to the oven for an additional 10 minutes baking time.
When baking is complete, remove the pan from the oven, carefully remove bread from pan and place on baker's rack. Cover the hot bread with a clean towel & allow to cool completely.