Chocolate and red wine cake with pears

Name: Chocolate and red wine cake with pears
Prep time: 20 min
Cook time: 1 h 20 min
Total time: 1 h 20 min
Yield: 16 slices
Ingredients: butter; 250 g plain flour; 70 g cocoa powder; 1 tsp ground cinnamon; ¼ tsp ground cloves; 2 tsp bicarbonate of soda; 1 tsp baking powder; 250 g caster sugar; 1 pinch salt; 2 eggs; 200 g buttermilk; 100 g olive oil; 1 tsp vanilla bean paste; 200 g red wine; 270 g dark chocolate; 2 pears; 4 tbsp soft dark brown sugar; 200 g red wine; 200 g whipped cream