My Watercolor professor in college gave an assignment to paint desserts from a local bakery. His rationale was that we would get so tempted to eat the treats that we would paint quickly and end up with a fluid (rather than contrived) watercolor. Painting on canvas is different. The last time I tried painting candy I worked on two 36 x 36 canvases at the same time -- and couldn't stop thinking of chocolate. I was constantly hungry.
This small sketch with quick-drying acrylic gouache took me a few minutes and I didn't reach for a treat afterwards.
Next canvas painting: Still Life with Broccoli.