• Grease an 8x8 square pan and line it with parchment paper, if desired. Set aside.

Make the cherry filling

• Add all of the filling ingredients to a large pan. Cook over medium heat for about 10-15 minutes, stirring every few minutes until the cherries have cooked down some and the jam has thickened. Turn off heat all set pan aside to cool.

Make the Dough

• Add the flour, baking powder, salt, sugar, and cinnamon to a large bowl. Mix them together.
• Now, add in the cold butter and the egg. Using a pastry cutter or your hands, cut/work the butter into the flour. Do this until all of the egg is mixed in, and the cubes of butter are now broken down into pea-sized pieces. The dough will be a bit crumbly.
• Add in the cold water a teaspoon at a time, mixing after each one, until the dough starts to come together. It should be still be crumbly, but should hold it's shape when handling it.

Assemble the Bars

• Preheat your oven to 375°F.
• Add about ⅔ of the crust dough to the prepared pan and press it into an even, flat layer.
• Add the cooled cherry filling on top of the crust layer. Spread the filling evenly.
• Take the remaining ⅓ of the dough and break it into big crumbs on top of the filling.
• Bake for 38-40 minutes, until the crumble on top has started to turn a nice golden color. Allow to cool completely. Once cooled, cut into squares and enjoy!