Fruits of the Forest Streusel

I saw a Blueberry Crumble recipe on line the other day and wanted to try it. But, I didn't have all the ingredients, blueberries being one of them and the crumble topping seemed a bit weak. So, I decided to make something up. Sort of. I used the filling recipe from the recipe I'd seen ... but substituted for the blueberries and then used the streusel topping from that magnificent apple cheesecake streusel

Here's what I did :

Filling:
1 box frozen Forest Fruits - no, I didn't bother to thaw them, I just used them frozen
1/2 cup sugar
1 tablespoon cornflour
a drizzle of lemon juice
a pinch of salt

Mix together ingredients from above and set aside.

Base and Topping:
1 cup packed brown sugar
1 cup flour
1/2 cup oats
1/2 cup butter, softened

Mix together all ingredients. Push 1/2 (or maybe not quite half) of the streusel mix into the bottom of a springform pan, forming a very thin base. Top with berry mixture and then the rest of the streusel mix.

Bake in preheated oven on 180 til fruit is bubbling through the top edges and streusel topping is golden brown. I wasn't sure how long it would take so didn't set a timer and forgot to look at the clock .... but my best guess is that it was between 40 and 50 minutes.

Let set for a bit before trying to remove it from the pan !

Serve with a dollop of freshly whipped cream. (no sugar, just a spot of vanilla needed in the whipping !)