Healthy Coffee Cake

• 1 cupplain 0% Greek yogurt
• 3eggs
• 1brown banana — mashed, ½ cup
• 3 tbspmaple syrup
• ¼ cupolive oil
• 1 tspvanilla extract
• 2 cupsoat flour — blended oats
• ½ cupcollagen powder — or unflavoured protein powder or additional oat flour
• 1½ tspbaking powder
• ½ tspbaking soda
• ½ tspsalt
• 1 tspcinnamon

Crumble topping:

• ⅓ cupcoconut sugar — or brown sugar
• ⅔ cupoat flour — or almond flour or oats
• 1 tspcinnamon
• 3 tbspbutter — room temperature

White chocolate topping:

• 1 ozbakers white chocolate — baker's
• 1 tbspmilk
• 1–2 tspvanilla protein powder — optional