hector’s take on ROSE’S heavenly CAKES: Sticky Toffee Pudding (page 71) is baked on individual pans, as per one of the recipe suggestions.
the pan used is a break apart silicone pan, each portion is about 1/2 cup:
this is a silicone break apart pan, but the portions are held together. as you can see, this makes the pan quite wide and it touches the sides of my small electric oven: