How to Make Orgeat Syrup 1 1/2lb whole, raw almonds 4c sugar 2c water 3 dashes orange flower water 3 dashes rose water Directions Toast almonds. (oven at 400F for 10-15 minutes) and crush Add almonds with sugar and water to a pan and bring to a simmer. Simmer for two minutes. Remove from the heat, cover, and let sit for at least 12 hours. Strain through two layers of cheese cloth. Add the rose and orange flower waters. Bottle.