125g |
dutch (unsweetened) cocoa powder |
250ml |
boiling water |
1 |
pumpernickel bread slice, torn into rough crumbs |
3 tablespoons |
orange flavoured liqueur (such as cointreau) |
225g |
unsalted butter |
185g |
soft brown sugar |
345g |
caster (superfine) sugar |
4 teaspoons |
molasses |
4 |
eggs |
1 teaspoon |
baking powder |
2 |
teaspoons, bicarbonate of soda (baking soda) |
1 |
teaspoon, salt |
300g |
plain (all-purpose) flour |
100g |
rye flour |
250g |
sour cream |
450g |
rhubarb, cut into 2 cm pieces |
|
rosemary blossoms, to decorate |