01 - In a large bowl, whisk together flour, sugar, cinnamon, mixed spice, nutmeg, salt, and yeast. Keep yeast and salt on opposite sides of the bowl.
02 - Mix in softened butter, orange zest, currants, and candied peel until evenly distributed.
03 - Whisk egg into lukewarm milk until combined. Pour into dry mixture.
04 - Mix until sticky dough forms. Turn onto floured surface and knead for 10 minutes until smooth and elastic, or use stand mixer with dough hook for 5 minutes.
05 - Place dough in greased bowl, cover, and let rise in warm place for 1 hour until doubled in size.
06 - Punch down dough and divide into 12 equal pieces. Roll into balls and arrange on lined baking sheet with slight spacing.
07 - Cover loosely with oiled plastic wrap or towel. Let rise 45 minutes until puffy and just touching.
08 - Heat oven to 400°F.
09 - Mix flour and water into thick, pipeable paste. Transfer to piping bag.
10 - Pipe a cross over each risen bun.
11 - Bake for 20–25 minutes until golden brown and hollow-sounding when tapped.
12 - Heat apricot jam and water until melted. Brush over hot buns immediately.
13 - Transfer to wire rack. Serve warm or at room temperature.