1 tbsp condensed milk (just warm it to thin it)
Method
1. Preheat the oven to 190°C. Line an 8x8-inch baking pan with parchment paper.
2. In a medium bowl, combine oats, flour, brown sugar, ginger, and salt. Pour in the melted butter and stir until it forms clumps. Dry ingredients are evenly moistened. Set aside half a cup of the crumble mixture, press the rest into an even layer in the bottom of the prepared pan.
3. Scatter half of the strawberries over the crust. Sprinkle the corn starch evenly over the top, then sprinkle on the lemon juice and half a tablespoon of the granulated sugar all over. Scatter the remaining strawberries, then add the remaining sugar. Sprinkle the reserved crumbs evenly over the top. You will have some fruit showing through.