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: