MY NANAY'S LECHE FLAN 10 egg yolks (use XL / Jumbo yolks, or add 1 to 2 more if using medium) 1 tall can evaporated milk 2 cans (380/ 390 grams) condensed milk zest of 3-5 Dayap, OR zest of 2 lemon 2-4 tablespoons sugar per Llanera (leche flan mould), for caramelizing