500g strong white bread flour, plus extra for dusting
7g sachet fast-action dried yeast
50g golden caster sugar
1 ½ tsp cinnamon
3 tbsp olive oil
1 lemon, zested
100g frozen blueberries
milk, for brushing
50g plain flour
1 tbsp maple syrup
Mix the bread flour, yeast, sugar, cinnamon, oil, 2 tsp sea salt and 350ml warm water in a bowl with a spoon first, and then with your hands. Add the zest and continue to knead (or use a mixer fitted with a dough hook) for around 10 mins until it feels less sticky. Shape into a ball, return to the bowl and cover. Leave to rise for about 1 hr or until doubled in size (or leave in the fridge overnight).
Knock the air out of the dough. Gently knead in the frozen blueberries. On a floured surface, shape into eight buns. Put the buns on a baking tray lined with baking parchment (no more than 2cm apart) and prove somewhere warm for 1 hr or until well risen.
Heat oven to 220C/200C fan/gas 7. Brush the bun tops with milk. Mix the plain flour with water to make a paste, transfer to a piping bag and pipe crosses on top. Bake for 25-30 mins or until golden and risen. Brush with the maple syrup while still warm.