Soak 250 grams of almonds in hot water for 30 minutes. After soaking, peel the skin off the almonds and let them dry for a few minutes.
Grind the peeled almonds into a fine powder using a mixer or grinder.
In a non-stick pan, add 200 grams of sugar and 1/2 cup of water. Cook on medium heat until the sugar dissolves completely and forms a syrup with a one-string consistency.
Add the almond powder to the sugar syrup and mix well. Cook on low heat, stirring continuously, until the mixture thickens and starts leaving the sides of the pan.
Grease a flat plate or tray with a little ghee. Pour the almond mixture onto the greased plate and spread it evenly with a spatula or the back of a spoon.
Allow the mixture to cool for a few minutes. When it is still warm, place a butter paper on top and gently roll it with a rolling pin to achieve the desired thickness (usually about 1/4 inch).
Remove the butter paper and let the mixture cool completely. Once cooled, cut the Badam Katli into diamond-shaped pieces using a sharp knife.