In a large bowl, add in the ingredients for the crust. Using a pastry cutter or two knives cut the butter into the sugar and flour.
You can also use a food processor to blend the ingredients together.
Press the dough evenly into a greased cookie sheet. Bake at 375°F for 20 minutes, or until the crust begins to brown around the edges.
While the crust cooks, make the crumble topping in the same manner you did the crust. You can use the same bowl and pastry cutter, or food processor.
Make sure the crumbles are close in size to a small olive or smaller than that.
When the crust is finished baking, spread the jam evenly over the crust while it's still hot.
Sprinkle one layer of the topping over the jam, then sprinkle the chocolate chips over the top of that. Finish with the rest of the topping sprinkled over the chocolate chips.
Bake again in a 375°F oven for another 15 minutes. Take out and sprinkle with sprinkles. Let cool completely before serving. Store in an airtight container for up to a week. Or in the refrigerator for 2 weeks.
Notes
Additionally, you could melt some white chocolate and drizzle it over the top before adding the sprinkles.