For the slice base
For the toffee nut topping
- STEP 1
Heat oven to 200C/180C fan/gas 6. Line a 21 or 22cm square, shallow baking tin with baking parchment. Put the flour, ground rice and sugar in a bowl with the butter and rub in until fine crumbs form. Stir in the milk with a cutlery knife. Tip it all into the tin and press down evenly. Bake for 15-20 mins until golden.
- STEP 2
Remove the tin and lower oven to 180C/160C fan/gas 4. Mix together the seeds, nuts, caramel and flour. Evenly distribute over the base, scatter with extra seeds, then bake for 8-10 mins more. Cool in the tin, then cut into squares.