set your oven to 350Â°
melt 1 tbsp of butter in your cast iron skillet on medium heat
add berries, sugar, flour and corn starch and mix together
let simmer, stirring occasionally, for 2-3 minutes then remove from heat
Next, in a mixing bowl, add melted butter and sugars and mix together until creamy
add in eggs, lemon juice and vanilla. Mix until combined
Add in Flour, baking soga and poppy seeds. Mix until just combined.
Take your ice cream scoop and scoop your dough, evenly, onto the berry mixture. It wont completely cover the filling just yet, but as it bakes will spread evenly over the mixture.
bake for 22 minutes or until cookie crust is a little brown.