Rhubarb Puffs with Oaty Streusel Topping

What you will need

5 sticks rhubarb, cut into 3cm pieces Rhubarb roo-barb Botanically, rhubarb is a vegetable (it's related to sorrel and dock) but its thick, fleshy…

1 tsp cinnamon Cinnamon sin-ah-mun A fragrant spice which comes from the inner bark of a tropical tree. When dried, it curls into…

3 tbsp plain flour, plus extra for dusting

5 tbsp soft brown sugar

½ a 500g block puff pastry

3 tbsp unsalted butter

50g rolled oats