Open Fire Illegal in Germany

Slowly moving back to Germany, I have to follow up the the laws and the ones that changed over the last 25 years. Sleeping in cars appears to be legal still, however, camping is apparently not. Camping in Germany is defined (lately) by using seating outside the vehicle. Also, using open fire is forbidden, meaning, any sort of gas, gasoline or alcohol stove is forbidden.
Well, lucky me, I got an EV with V2L capabilities. OK, I still can't but a chair outside my vehicle, however, I am able to use the V2L function of my car to prepare hot meals by means of either an electric hotplate, an Instant Pot (electric pressure cooker), a microwave or an Air Fryer.

My vehicle supplies AC at 3.6kW, which is enough to supply any of the above mentioned kitchen appliances.
For wet cooking, I am using Instant Pots for years by now. The 3l model requires 800W and runs perfectly from my PV island and should do great with the EV.

For baking, roasting and BBQ, my mini Air Fryer does a great job at 1kW. Just for the car, I ordered a 1.5l Air Fryer which uses 900W. 

I look forward to EV camping with the electric kitchen appliances.