What’s the big deal with bubbles?
And why are they such a problem with cannelés? So asks reader Ronnie, and it’s a question well worth answering. After all, almost all cakes — both large and small — are filled with bubbles. They don’t explode, why do cannelés? Well Ronnie, the problem is the shape of the molds. They’re tall and narrow rather than broad and flat, the shape of most cake and cookie molds. And that’s a problem when it comes to expanding gas and steam. Normally the expanding gasses in, say, a financier can escape out the top and to a lesser extend the sides, which together make up a considerable surface area.
READ ON
