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There were some "residue" at the sides of the melanger that looked like pure fat. But I think you're right. It's more just thick and weird in texture rather than separated, so it probably is the humidity. Seriously, for the first time in my life I'm starting to hate the summer, can't do chocolate work, can't make a praliné? Can't wait for normal weather.
Yes. Hazelnuts and caramelised sugar. 
Edit: I guess I can use this though, it's supposed to go in a mousse. No need to throw it away.
There were some "residue" at the sides of the melanger that looked like pure fat. But I think you're right. It's more just thick and weird in texture rather than separated, so it probably is the humidity. Seriously, for the first time in my life I'm starting to hate the summer, can't do chocolate work, can't make a praliné? Can't wait for normal weather.
Yes. Hazelnuts and caramelised sugar.
