Blackberry jam tarts

Blackberry chia jam

• 500 g frozen blackberries
• 70 g raw sugar
• 1 ½ tsp agar agar (see Tips)
• 3 tsp white chia seeds

Blackberry jam tarts

• 1 sheet spelt puff pastry (see Tips)
• 100 g pouring (whipping) cream, to serve
• fresh blackberries, to serve