It is better to take a cast-iron frying pan and melt the butter over low heat with a wooden spoon. Add flour and stir constantly so that it does not burn. Stir until the mixture turns golden. Prepare the syrup at the same time. Take a saucepan and pour water and sugar into it (I took brown sugar, ideally, of course, white). the sugar should completely dissolve. But the syrup should not boil.