Zest the lemon with the sugar. Mix the honey and the eggs. Add it to the sugar and zest.
Sift the flour with baking powder and add it to the previous mixture. Melt the butter. Add the cream and then the butter.
Leave the dough to rest for 24 hours in the refrigerator. Bake at 374°F (190°C) and then lower the temperature to 338°F (170°C) for 7 to 8 minutes. Let cool on baking rack once golden brown.