Preheat the oven to 180°C (350°F)
In a medium bowl, melt the butter and mix with the mashed bananas, yogurt, egg, almond milk, and vanilla extract until well combined
sift through the flour, sweetener, baking powder, baking soda, cinnamon, and nutmeg and mix with a spatula until just combined
Toss 3/4 of the raspberries in 1/2 tsp of flour and gently fold into the batter
Add the chopped white chocolate to the batter and mix in, reserving some for the top
Mash the remaining raspberries until no clumps remain
Pour the batter into a lined loaf pan and swirl the mashed raspberries on top, and then sprinkle with the remaining white chocolate
Bake for 55-65 minutes, or until a toothpick inserted in the center of the loaf comes out clean
Let the bread cool completely in the pan before slicing into 10-12 pieces