01 -
In a small bowl, whisk together Greek yogurt, flour, sugar, milk, and lemon juice until well combined.
02 -
Add frozen peaches and cherries to the mixture and toss to coat evenly.
03 -
Spray the crock with nonstick spray and pour the peach and cherry filling into the slow cooker.
04 -
Cut cold butter into small pieces. Using a fork or pastry cutter, mix butter with wheat flour, brown sugar, sugar, and cinnamon until a crumble forms.
05 -
Sprinkle the crumble topping evenly over the fruit filling in the crock. Cover and cook on high for 2-4 hours.