Maybe it means you share a recipe for an apple tart.

FORBES: Emily Kerr of Liga Masiva on Creating A Global Farmers' Market

Mr. Picard grew up eating a French version of chicken pot pie, called vol au vent du poulet, and apple tart, or tarte Tatin.

WSJ: Martin Picard's Sun-Dried Tomato and Onion Tart | Slow Food Fast