Banana Bread with Peanut Butter Streusel - A Duck's Oven

Ingredients

• 2 cups 255 grams flour
• 1 tsp baking soda
• 1 tsp kosher salt
• 1/2 cup 1 stick butter, room temperature
• 1 cup tightly packed (213 grams brown sugar)
• 2 large eggs (room temperature)
• 1/2 cup 113 grams sour cream
• 1 tbsp vanilla extract
• 340 grams 2-3 depending on size very ripe peeled bananas
• 1/4 cup 32 grams flour
• 1/4 cup 53 grams brown sugar
• 1/4 tsp kosher salt
• 1 tbsp powdered peanut butter
• 1 tbsp butter
• 2 tbsp creamy peanut butter