Blueberry muffin cheesecake

These tempting-looking squares have a crunchy cinnamon crumb rather than a biscuit base, for maximum flavour but minimal Swips...

Ingredients

sheets leaf gelatine
cal cooking spray*
any no-added-sugar, fat-free vanilla yogurt
fat-free natural Greek-style yogurt
plain quark
vanilla extract
level tbsp sweetener granules
sachet blackcurrant sugar-free jelly crystals
Good squeeze of lemon juice
fresh blueberries
plain flour
plain porridge oats
ground cinnamon
large egg yolk, plus 2 tsp egg white
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