Have a new sc - can I put the pot directly on the gas hob to brown onions, meat etc? I know you can w Crockpot but I've got a 4l Cuisinart one. Also my spag bol came out funny - lovely flavour but the meat tasted a bit grainy/ gritty almost but also it was quite greasy . Did i do something wrong (500g lean mince, liquid was 1 tin of toms, cooked on high for 2hrs then on low for 5)? tia